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Voice of the Aerial Application Industry
February 7, 2013
AD Issued on Bell Main Rotor Yokes
On Jan. 23 the FAA issued Airworthiness Directive (AD) No. 2012-17-08 applicable to Bell Helicopter Textron Inc. (Bell) Model 204B, 205A, 205A-1, 205B and 212 helicopters with a main rotor yoke, part number (P/N) AAI-4011-102 (all dash numbers), ASI-4011-102 (all dash numbers), or 204-011-102 (all dash numbers), installed. The AD defines the unsafe condition as a crack in the yoke. This condition could result in failure of the yoke and subsequent loss of helicopter control.
 
This AD supersedes four ADs related to the main rotor yoke on the effected helicopters and retains certain inspections and certain life limits, requires an increased inspection frequency for certain yokes and expands these inspections and retirement to other yokes. FAA published a notice of proposed rulemaking (NPRM) on Nov. 2, 2011 proposing to supersede AD 79-20-05 with amendments dated Jan. 31, 1980, Dec. 6, 1979 and Sep. 27, 1979; AD 81-19-01 dated Sep. 14, 1981; AD 81-19-02 dated Sep. 14, 1981; and AD 93-05-01 dated Mar. 15, 1993. No comments were received from the public on the NPRM.
 
Compliance with the AD depends on the part number of the yoke installed, time in service (TIS), and the type of aircraft use. Refer to the explanation and Table 1 in the AD to calculate factored hours TIS in order to determine required action.
 

The AD is effective Feb. 27, 2013. NAAA recommends you read the AD carefully to determine the action or actions required to comply with this AD. Click here to read or download the document.

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This newsletter is intended for NAAA members only. NAAA requests that should any party desire to publish, distribute or quote any part of this newsletter that they first seek the permission of the Association. The views, thoughts, and opinions expressed herein do not necessarily represent those of the National Agricultural Aviation Association (NAAA), its Board of Directors, staff or membership. Items in this newsletter are not the result of paid advertising and are only meant to highlight newsworthy developments. No endorsement by NAAA is intended or implied.
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IN THIS ISSUE
SEAF Recognizes Bill Lavender and AgAir Update
Web-Distributed Labeling on the Horizon
Renew Your NAAA Membership by Feb. 15
Legislation Introduced in Nebraska Changing Fines Levied for Application Violations
NAAA, WNAAA, NAAREF Board Meetings Feb. 14-16
For the Record: Forstrom NAAA’s First Female Officer
AD Issued for Bell 205s
AD Issued on Bell Main Rotor Yokes
AD Issued for Bell 206 Servo Actuator Assemblies
Paper Mechanics Certificates Expire Soon
CALENDAR OF EVENTS
February 78
North Carolina AAA Convention & PAASS Program
Embassy Suites Raleigh
Durham/Research Triangle
Contact: Mike Rivenbark
(910) 279-7069
 
February 1416
NAAA, WNAAA, NAAREF Spring Board Meetings
Hilton Alexandria Old Town
Alexandria, VA
Contact: Peggy Knizner
(202) 546-5722
Tentative Meeting Schedule
 
February 1820
Nebraska ATA Convention & PAASS Program
Younes Conference Center
Kearney, NE
Contact: Judy McDowell
(402) 475-6282

February 19–22
Louisiana AAA North Fly-In
Location TBD
Analyst: Dennis Gardisser
(501) 676-1762

February 2022
Tr-State Aerial Convention & PAASS Program
Sioux Falls Convention Center
Sioux Falls, SD
Contact: (MN) Terry Stieren
(952) 226-5874
(ND) Cindy Schreiber-Beck
(701) 642-5777
(SD) Laurie Robbennolt
(605) 765-2707


Full Calendar of Events
 

 


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